1NVME-GET-PROPERTY(1) NVMe Manual NVME-GET-PROPERTY(1)
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6 nvme-get-property - Reads and shows the defined NVMe controller
7 property for NVMe over Fabric
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10 nvme get-property <device> [--offset=<offset> | -o <offset>]
11 [--human-readable | -H ]
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14 Reads and shows the defined NVMe controller property for NVMe over
15 Fabric.
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18 -o, --offset
19 The offset of the property. One of CAP=0x0, VS=0x8, CC=0x14,
20 CSTS=0x1c, NSSR=0x20
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22 -H
23 --human-readable: Show the fields packed in the property
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26 · The following will run the get-property command with offset 0
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28 # nvme get-property /dev/nvme0 --offset=0x0 --human-readable
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31 Currently the CAP value is truncated to 32 bits due to a limitation in
32 the ioctl interface.
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34 In a recent enough kernel, the 64 bit value is shown in kernel traces.
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36 · First enable traces by this command
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38 # echo 1 > /sys/kernel/debug/tracing/events/nvme/enable
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40 · Then look for NVMe Fabrics command (0x7f) at trace
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42 /sys/kernel/debug/tracing/trace
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45 Part of the nvme-user suite
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49NVMe 04/24/2020 NVME-GET-PROPERTY(1)